Related Experiment Video
Updated: Feb 25, 2026

Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
A Multi-Level Decision Fusion Strategy for Condition Based Maintenance of Composite Structures
Zahra Sharif Khodaei1, M H Aliabadi2
1Department of Aeronautics, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. z.sharif-khodaei@imperial.ac.uk.
Abstract:
In this work, a multi-level decision fusion strategy is proposed which weighs the Value of Information (VoI) against the intended functions of a Structural Health Monitoring (SHM) system. This paper presents a multi-level approach for three different maintenance strategies in which the performance of the SHM systems is evaluated against its intended functions. Level 1 diagnosis results in damage existence with minimum sensors covering a large area by finding the maximum energy difference for the guided waves propagating in pristine structure and the post-impact state; Level 2 diagnosis provides damage detection and approximate localization using an approach based on Electro-Mechanical Impedance (EMI) measures, while Level 3 characterizes damage (exact location and size) in addition to its detection by utilising a Weighted Energy Arrival Method (WEAM). The proposed multi-level strategy is verified and validated experimentally by detection of Barely Visible Impact Damage (BVID) on a curved composite fuselage panel.
Related Concept Videos
Design Consideration
The factor of safety is another key...
Internal Loadings in Structural Members: Problem Solving
To illustrate this, let's consider a beam OC of 5 kN, inclined at an angle of 53.13° with the horizontal and supported at both ends. Determine the internal...
Method of Superposition
When applying the method of superposition, each type of load—whether...
Prismatic Beams: Problem Solving
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
Statically Indeterminate Problem Solving
Design of Prismatic Beams for Bending

